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Public park

Problems

Recurring flooding, degraded soils, overheated or stressed public spaces, aging infrastructure, environmental liabilities, and pressure to meet resilience and sustainability goals.

Solutions

More resilient public land, better water and soil performance, lower maintenance pressure, stronger compliance with environmental objectives, and visible benefits for residents.

Applications for you

What users say

D.J.

Homeowner, Ferney-Voltaire, France

We were experiencing rising damp and a constant feeling of dampness around the house. Installing GEPS was quick and had no impact on the existing infrastructure. Since then, the ground has been stable and we no longer have any dampness, even after heavy rain.

Groundwater solutions

S.M.

Homeowner, Founex, Switzerland

Before GEPS, our basement was regularly flooded, and the persistent dampness made the air unhealthy. Since the installation, the basement is perfectly dry all year round, without maintenance, and the results have remained stable almost ten years later.

Groundwater solutions

H.Z.

Homeowner, Crêts-de-Champel, Switzerland

We had significant water infiltration problems in our basement. After installing the GEPS system, which took only a week and required no major construction work, the problems completely disappeared. More than six years later, the system still works perfectly, even during heavy rain.

Groundwater solutions

Environmental Scientist

Detroit, Michigan, USA

A group of various trees were planted in a small orchard north of Palmer Park in 2014. All the trees had health issues and struggled to survive. We installed NEPS on 21 of the total 43 trees at the location in December 2017. We’ve observed significant/healthy growth in nearly all trees with NEPS installed, whereas trees without NEPS struggle to bloom and/or died.

Soil nutrient solutions

Thomas Olivier

Greenskeeper, Rougemont-le-Château Golf Course, France

GEPS replenishes the soil naturally, reducing dependency on artificial irrigation and safeguarding the course’s future.

Groundwater solutions

John H. Robertus

Escondido, California, USA

Decorative trees were planted in the middle of a parking lot in 2008. The trees had to be replaced in 2016 due to health issues. The newly planted trees struggled also and were planned on being replaced once again. In February 2018, NEPS were installed around these trees to promote healthier growth. Since then, the trees greatly increased their vitality and have grown like never before.

Soil nutrient solutions

Project Observer

Chernobyl Exclusion Zone, Ukraine

This is the first solution that has successfully reduced radiation levels in Chernobyl, marking a pivotal advancement.

Soil decontamination

Thomas Olivier

Greenskeeper, Rougemont-le-Château Golf Course, France

GEPS stabilized wet areas on our fairways, significantly enhancing firmness and reducing ground deformation.

Groundwater solutions

James Breuckman

City Manager, City of Pleasant Ridge, USA

Exlterra's GEPS transformed our waterlogged parks into vibrant, usable spaces. The system resolved standing water issues and reduced mosquito presence, making areas suitable for recreational activities.

Groundwater solutions

M.S.

Homeowner, Chavannes-des-Bois, Switzerland

After more than six years of use, the system works perfectly. We have had no further humidity issues despite heavy rainfall, with a solution that is simple, non-invasive, and fully reliable over time.

Groundwater solutions

Carrie A. Laird

City of Birmingham, USA

Since installation, the ground has remained firm and free of standing water year-round, transforming previously unusable areas into reliable, maintenance-free public spaces.

Groundwater solutions

Municipality of Tczew

City of Tczew, Poland

The GEPS system eliminated the root cause of moisture in the walls, resulting in completely dry basement rooms, without disruptive works or impact on the building’s operation.

Groundwater solutions

Jason Watt

Coleman A. Young Airport, Detroit, USA

GEPS effectively eliminated standing water and has consistently met our expectations. It improved site safety, maintained stable ground conditions year-round, and delivered a direct positive impact on airport operations.

Groundwater solutions

H.A.Z.

Homeowner, Chêne-Bougeries, Switzerland

The results are particularly impressive: the basement is now completely dry year-round, the air is healthier, and nearly ten years later the system continues to perform flawlessly without any maintenance.

Groundwater solutions

Norbert Daverat

Greenskeeper, Golf & Country Club Basel, Switzerland

GEPS provides a permanent, invisible balance of soil moisture. The ground remains playable in wet periods, retains sufficient moisture in dry periods, and requires no maintenance. Turf quality, root depth, and overall playability have significantly improved.

Groundwater solutions

Dr. Edwin Herricks

Professor Emeritus of Environmental Biology, University of Illinois, Urbana, USA

The GEPS technology might best be described as novel and is unique in my over 40 years of experience in water resource management, including wetland design and operation. It cannot be readily compared with existing surface drainage methods that depend on pipes or channels to deliver water to holding basins. The GEPS is passive but has great capacity for water movement, taking advantage of many mechanisms and processes.

Groundwater solutions

Sergei Kireev

SSE Ecocenter, Chernobyl

The NSPS technology is a revolutionary approach to radioactive soil decontamination. Unlike any method I have encountered in my career, it accelerates the natural decay process without chemicals, excavation, or disruption to the environment. It harnesses naturally occurring positrons and redirects their energy, and achieves what was previously deemed impossible: breaking down radioactive nuclei within contaminated soil. Its passive operation and long-term effectiveness present a sustainable, innovative solution to one of the world's most complex environmental challenges.

Soil decontamination

Media Article

Global Environmental News

Exlterra’s NSPS technology demonstrates an innovative way to restore contaminated land, paving the way for global applications.

Soil decontamination

Dr. Peggy Mauk

PhD & Distinguished Senior Research Specialist, Institute of Water Research, Michigan State University, Lansing, USA

Most of the GEPS within the infiltration basin enhanced the local infiltration rate. The infiltration rates associated with two of the shallow GEPS were 7.4 – 8.6 times faster than the one associated with native soil conditions. The infiltration rate associated with the deep GEPS was 10.2 times faster than that associated with native soil conditions.

Groundwater solutions

Thomas Olivier

Greenskeeper, Rougemont-le-Château Golf Course, France

GEPS reduced water stress on turf grass during dry spells, preserving vegetation and soil health effortlessly.

Groundwater solutions

FAQ

Each project starts with a diagnosis of your site conditions, constraints, and objectives. Based on that, we determine which solution—or combination—fits best.

How do I know which solution is right for my situation?

Yes. Many projects require a combination of systems depending on soil conditions, water flow, or contamination levels. The approach is modular and adapted case by case.

Can multiple solutions be combined in one project?

Both. Solutions can be integrated during construction or retrofitted into existing environments, depending on access and constraints.

Is this suitable for both new projects and existing sites?

Installation is designed to be as non-intrusive as possible. The level of disruption depends on the site, but most projects are planned to minimize downtime.

Will the installation disrupt my operations or site usage?

Some effects are immediate, such as improved drainage. Others stabilize over time as the system interacts with the soil and environment.

How long does it take to see results?

No ongoing maintenance is required in most cases. The systems are passive and designed to function long-term without intervention.

Do I need to maintain the system after installation?

Yes. The solutions are designed to align with environmental guidelines and sustainable development practices.

Is this compatible with environmental regulations and standards?

We handle the full process, from assessment to implementation, ensuring consistency and accountability.

Who manages the project from diagnosis to installation?

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